1974–75 United States network television schedule

The 1974–75 network television schedule for the three major English language commercial broadcast networks in the United States covers primetime hours from September 1974 through August 1975. The schedule is followed by a list per network of returning series, new series, and series cancelled after the 1973–74 season.

PBS, the Public Broadcasting Service, was in operation, but the schedule was set by each local station.

This is the last season in which the networks were limited to a 21-hour (three hours every day) weekly prime time schedule as mandated by the original Prime Time Access Rule enacted in September 1971. In January 1974, the FCC announced that it would relax the rulings for the fall season so that the networks could have four hours of nighttime programming on Sundays from 7 to 11 p.m., with two additional half-hours allocated for public affairs or family-oriented programming for the rest of the week. However, an injunction by syndicators forced the FCC to delay the changes by a year

New series are highlighted in bold.

All times are U.S. Eastern and Pacific Time (except for some live sports or events). Subtract one hour for Central, Mountain, Alaska and Hawaii–Aleutian times.

Each of the 30 highest-rated shows is listed with its rank and rating as determined by Nielsen Media Research.